syncthing/vendor/github.com/onsi/gomega/matchers/have_len_matcher.go
2017-12-29 11:38:00 +00:00

29 lines
787 B
Go

package matchers
import (
"fmt"
"github.com/onsi/gomega/format"
)
type HaveLenMatcher struct {
Count int
}
func (matcher *HaveLenMatcher) Match(actual interface{}) (success bool, err error) {
length, ok := lengthOf(actual)
if !ok {
return false, fmt.Errorf("HaveLen matcher expects a string/array/map/channel/slice. Got:\n%s", format.Object(actual, 1))
}
return length == matcher.Count, nil
}
func (matcher *HaveLenMatcher) FailureMessage(actual interface{}) (message string) {
return fmt.Sprintf("Expected\n%s\nto have length %d", format.Object(actual, 1), matcher.Count)
}
func (matcher *HaveLenMatcher) NegatedFailureMessage(actual interface{}) (message string) {
return fmt.Sprintf("Expected\n%s\nnot to have length %d", format.Object(actual, 1), matcher.Count)
}